/* Swiss Minimalist Editorial - 绿树加速器 */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,600;0,9..144,800;1,9..144,300;1,9..144,600&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --paper-white: #FAFAF7;
  --ink-black: #111110;
  --muted-gray: #6E6E64;
  --fine-line: #E5E5DF;
  --accent-green: #0E9F6E;
  --mint-num: #34D399;
  --font-serif: 'Fraunces', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--paper-white);
  color: var(--ink-black);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Container & 12-Column Grid */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Fine-line Navigation */
.site-header {
  border-bottom: 1px solid var(--fine-line);
  background: var(--paper-white);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-mark {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink-black);
}

.brand-mark span {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--muted-gray);
  margin-left: 8px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 36px;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--ink-black);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--ink-black);
  transition: width 0.3s ease;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-cta-btn {
  background: var(--ink-black);
  color: var(--paper-white);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 24px;
  border: 1px solid var(--ink-black);
  transition: background 0.3s ease, color 0.3s ease;
}

.nav-cta-btn:hover {
  background: transparent;
  color: var(--ink-black);
}

/* Full-bleed Hero */
.hero-block {
  padding: 90px 0 70px;
  border-bottom: 1px solid var(--fine-line);
}

.hero-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted-gray);
  margin-bottom: 24px;
  display: block;
}

.hero-h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6.5vw, 5.2rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
}

.italic-green {
  font-style: italic;
  font-weight: 300;
  color: var(--accent-green);
}

.hero-desc {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--muted-gray);
  max-width: 820px;
  line-height: 1.7;
  margin-bottom: 44px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-black {
  background: var(--ink-black);
  color: var(--paper-white);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 32px;
  border: 1px solid var(--ink-black);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
}

.btn-black:hover {
  background: transparent;
  color: var(--ink-black);
}

.btn-check-editorial {
  background: transparent;
  color: var(--ink-black);
  border: 1px solid var(--ink-black);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 28px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.btn-check-editorial:hover {
  background: var(--ink-black);
  color: var(--paper-white);
}

/* Ink Black Data Banner */
.ink-data-banner {
  background: var(--ink-black);
  color: var(--paper-white);
  padding: 60px 0;
  border-top: 1px solid var(--ink-black);
  border-bottom: 1px solid var(--ink-black);
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.data-item {
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  padding-left: 24px;
}

.data-num {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 3.8vw, 3.4rem);
  font-weight: 600;
  color: var(--mint-num);
  line-height: 1;
  margin-bottom: 8px;
}

.data-label {
  font-size: 0.85rem;
  color: #A3A39E;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Section Header */
.sec-header {
  padding: 80px 0 30px;
}

.sec-num {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent-green);
  margin-bottom: 12px;
  display: block;
}

.sec-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* Section 01: Features List (4-Row Editorial List) */
.features-list {
  border-top: 1px solid var(--fine-line);
  margin-bottom: 80px;
}

.feature-row {
  display: grid;
  grid-template-columns: 80px 1fr 1fr 40px;
  align-items: baseline;
  padding: 32px 0;
  border-bottom: 1px solid var(--fine-line);
  transition: all 0.3s ease;
  cursor: default;
}

.feature-row:hover {
  background: rgba(14, 159, 110, 0.02);
}

.feature-index {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--muted-gray);
}

.feature-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink-black);
  transition: color 0.3s ease;
}

.feature-row:hover .feature-name {
  color: var(--accent-green);
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--muted-gray);
  line-height: 1.6;
}

.feature-arrow {
  font-size: 1.4rem;
  color: transparent;
  transition: color 0.3s ease, transform 0.3s ease;
  text-align: right;
}

.feature-row:hover .feature-arrow {
  color: var(--accent-green);
  transform: translateX(6px);
}

/* Section 02: Network Statement & Supported Media */
.statement-box {
  padding: 40px 0 50px;
  border-bottom: 1px solid var(--fine-line);
  margin-bottom: 60px;
}

.statement-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.8vw, 2.2rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.4;
  color: var(--ink-black);
  margin-bottom: 30px;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.platform-cell {
  border: 1px solid var(--fine-line);
  padding: 20px;
  transition: border-color 0.3s ease;
}

.platform-cell:hover {
  border-color: var(--ink-black);
}

.platform-cell h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.platform-cell p {
  font-size: 0.85rem;
  color: var(--muted-gray);
}

/* Section 03: Pricing Table (No cards, pure editorial table) */
.pricing-editorial-table {
  width: 100%;
  border-collapse: collapse;
  margin: 40px 0 80px;
  font-size: 0.95rem;
}

.pricing-editorial-table th, .pricing-editorial-table td {
  border-bottom: 1px solid var(--fine-line);
  padding: 24px 20px;
  text-align: left;
}

.pricing-editorial-table th {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted-gray);
}

.pricing-editorial-table tr:hover td {
  background: rgba(14, 159, 110, 0.03);
}

.tier-highlight {
  color: var(--accent-green);
  font-weight: 700;
}

.price-big {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--ink-black);
}

.btn-table-cta {
  background: var(--ink-black);
  color: var(--paper-white);
  padding: 8px 20px;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-block;
  transition: all 0.3s ease;
}

.btn-table-cta:hover {
  background: var(--accent-green);
}

/* Section 04: Testimonials (Editorial format) */
.testimonials-list {
  border-top: 1px solid var(--fine-line);
  margin-bottom: 80px;
}

.test-item {
  padding: 40px 0;
  border-bottom: 1px solid var(--fine-line);
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
}

.test-author h4 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.test-author span {
  font-size: 0.85rem;
  color: var(--muted-gray);
}

.test-quote {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--ink-black);
}

/* Section 05: FAQ (Fine-line accordion) */
.faq-list {
  border-top: 1px solid var(--fine-line);
  margin-bottom: 80px;
}

.faq-row {
  border-bottom: 1px solid var(--fine-line);
  padding: 24px 0;
}

.faq-q {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-q::after {
  content: "+";
  font-family: var(--font-sans);
  font-size: 1.5rem;
  color: var(--muted-gray);
  transition: transform 0.3s ease;
}

.faq-row.open .faq-q::after {
  transform: rotate(45deg);
  color: var(--accent-green);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  font-size: 0.95rem;
  color: var(--muted-gray);
  line-height: 1.7;
}

.faq-row.open .faq-a {
  max-height: 300px;
  padding-top: 16px;
}

/* Super-large Serif Wordmark Footer (ONLY 4 Links) */
.site-footer {
  border-top: 1px solid var(--fine-line);
  padding: 80px 0 40px;
}

.footer-wordmark {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 10vw, 8rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--ink-black);
  margin-bottom: 60px;
  opacity: 0.9;
}

.footer-links-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--fine-line);
  padding-top: 32px;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

.footer-links a {
  text-decoration: none;
  color: var(--ink-black);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

.footer-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--ink-black);
  transition: width 0.3s ease;
}

.footer-links a:hover::after {
  width: 100%;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--muted-gray);
}

/* Article Styles for Editorial */
.article-editorial-header {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--fine-line);
  margin-bottom: 50px;
}

.article-editorial-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 600;
  line-height: 1.15;
  margin: 16px 0;
  letter-spacing: -0.02em;
}

.article-meta-row {
  font-size: 0.9rem;
  color: var(--muted-gray);
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.article-body-editorial {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #262624;
  max-width: 900px;
  margin-bottom: 80px;
}

.article-body-editorial h2 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--ink-black);
  margin: 48px 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--fine-line);
}

.article-body-editorial h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ink-black);
  margin: 32px 0 14px;
}

.article-body-editorial p {
  margin-bottom: 22px;
}

.article-body-editorial ul, .article-body-editorial ol {
  margin: 0 0 26px 28px;
}

.article-body-editorial li {
  margin-bottom: 10px;
}

.article-body-editorial table {
  width: 100%;
  border-collapse: collapse;
  margin: 36px 0;
  font-size: 0.92rem;
}

.article-body-editorial th, .article-body-editorial td {
  border-bottom: 1px solid var(--fine-line);
  padding: 14px 16px;
  text-align: left;
}

.article-body-editorial th {
  background: #F2F2EC;
  font-weight: 600;
  color: var(--ink-black);
}

.article-body-editorial code {
  background: #EFEFEA;
  padding: 2px 6px;
  font-family: monospace;
  font-size: 0.9em;
}

.article-body-editorial a {
  color: var(--accent-green);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Journal List Page */
.journal-item {
  padding: 36px 0;
  border-bottom: 1px solid var(--fine-line);
  display: grid;
  grid-template-columns: 160px 1fr 120px;
  gap: 30px;
  align-items: baseline;
  text-decoration: none;
  color: inherit;
}

.journal-item:hover .journal-item-title {
  color: var(--accent-green);
}

.journal-item-tag {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted-gray);
  text-transform: uppercase;
}

.journal-item-title {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 8px;
  transition: color 0.3s ease;
}

.journal-item-desc {
  font-size: 0.92rem;
  color: var(--muted-gray);
  line-height: 1.6;
}

.journal-item-date {
  font-size: 0.85rem;
  color: var(--muted-gray);
  text-align: right;
}

/* Responsive */
@media (max-width: 992px) {
  .data-grid, .platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-row {
    grid-template-columns: 50px 1fr;
    gap: 12px;
  }
  .feature-desc {
    grid-column: 2;
  }
  .feature-arrow {
    display: none;
  }
  .test-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .journal-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .journal-item-date {
    text-align: left;
  }
}

@media (max-width: 768px) {
  .data-grid, .platform-grid {
    grid-template-columns: 1fr;
  }
  .pricing-editorial-table {
    display: block;
    overflow-x: auto;
  }
  .footer-links-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-links {
    flex-direction: column;
    gap: 16px;
  }
}


/* ==========================================================================
   ENHANCED SWISS EDITORIAL THIN-LINE NAV WITH ANIMATED UNDERLINE
   ========================================================================== */
.site-header {
  border-bottom: 1px solid var(--fine-line, #E5E5DF);
  background: rgba(250, 250, 247, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand-mark {
  font-family: var(--font-serif, "Fraunces", serif);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink-black, #111110);
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-shrink: 0;
}

.brand-mark .brand-sub {
  font-family: var(--font-sans, "Inter", sans-serif);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--muted-gray, #6E6E64);
  text-transform: uppercase;
}

.desktop-nav-wrap {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--ink-black, #111110);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color 0.25s ease;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.nav-num {
  font-family: var(--font-serif, "Fraunces", serif);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-green, #0E9F6E);
  margin-right: 4px;
}

/* Swiss animated underline on hover */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent-green, #0E9F6E);
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--accent-green, #0E9F6E);
}

.nav-right-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.nav-cta-btn {
  background: var(--ink-black, #111110);
  color: var(--paper-white, #FAFAF7) !important;
  border: 1px solid var(--ink-black, #111110);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 20px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

.nav-cta-btn:hover {
  background: var(--accent-green, #0E9F6E);
  border-color: var(--accent-green, #0E9F6E);
  color: #ffffff !important;
}

/* Swiss Mobile Toggle Button */
.swiss-mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--fine-line, #E5E5DF);
  cursor: pointer;
  padding: 8px;
}

.swiss-mobile-toggle .line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink-black, #111110);
  transition: all 0.25s ease;
}

.swiss-mobile-toggle.active .line-1 {
  transform: translateY(4px) rotate(45deg);
}
.swiss-mobile-toggle.active .line-2 {
  transform: translateY(-4px) rotate(-45deg);
}

/* Swiss Mobile Drawer */
.swiss-mobile-drawer {
  display: none;
  border-top: 1px solid var(--fine-line, #E5E5DF);
  background: var(--paper-white, #FAFAF7);
  padding: 18px 24px 24px 24px;
}

.swiss-mobile-drawer.active {
  display: block;
}

.swiss-mobile-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.swiss-mobile-menu li a {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink-black, #111110);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(110, 110, 100, 0.2);
}

.m-num {
  font-family: var(--font-serif, "Fraunces", serif);
  color: var(--accent-green, #0E9F6E);
  font-size: 0.8rem;
  font-weight: 600;
}

.m-cta-wrap {
  margin-top: 12px;
  border-bottom: none !important;
}

.m-cta-link {
  display: block !important;
  text-align: center;
  background: var(--accent-green, #0E9F6E) !important;
  color: #ffffff !important;
  padding: 12px !important;
  font-weight: 600;
  border-bottom: none !important;
}

@media (max-width: 960px) {
  .desktop-nav-wrap {
    display: none;
  }
  .swiss-mobile-toggle {
    display: flex;
  }
}